use std::io::Read;

fn solve(a: usize, b: usize) {
    if a <= b {
        println!("{}", "YES");
    } else {
        println!("{}", "NO");
    }
    println!("{}", if a > b { a - b } else { b - a });
}

fn main() {
    let mut ab = String::new();
    std::io::stdin().read_to_string(&mut ab).ok();
    let ab: Vec<usize> = ab.trim().split('\n').next().unwrap().trim().split_whitespace().map(|i| i.parse::<usize>().unwrap()).collect();
    solve(ab[0] + 1, ab[1]);
}